Characteristic Design of Microwave Dielectric Materials by Using Self-Flux Compositions

Article Preview

Abstract:

In order to improve the sinterability and controllability of dielectric properties, we focused on self-flux composition. In the case of Ba(Mg1/3Nb2/3)O3, we selected Ba(1-b)NbbOd as self-flux system and investigated correlations between Q-factor and the b value. Interestingly, high Q-value was obtained only at the b=0.45. Moreover, the dielectric constant and tf change linearly by the quantity of Ba0.55Nb0.45Od under keeping up high-Q value. As a result, it was indicated that the dielectric properties could be controlled by the assumption of stoichiometric composition and liquid phase consisted by self-flux.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

109-112

Citation:

Online since:

January 2006

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2006 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Y. Yokotani, T. Tsuruta, K. Okuyama and K. Kugimiya, National Technical Report, 40.

Google Scholar

[1] 1994), 11.

Google Scholar

[2] M. H. Liang, C. T. Hu, C. G. Chiou, Y. N. Tsai and I. N. Lin., Jpn. J. Appl. Phys., 38(1999), 5621.

Google Scholar

[3] Young K. Kim, Kyu-Mann Lee and Hyun M. Jang, Journal of Materials Science, 35(2000), 4885.

Google Scholar

[4] B. W. Hakki and P. D. Coleman, IRE Trans. Microwave Theory Tech., 8(1960), 402.

Google Scholar

[5] R. S. Roth and J. L. Waring, J. Res. Natl. Bur. Stand., Sect. A, 65.

Google Scholar

[4] 1961), 337 Fig. 6. Microwave dielectric properties of (1-α)Ba(BII 1/3Nb2/3)O3-αBa0. 55Nb0. 45Oδ Fig. 5. Schematic phase diagram of BaO-MgO-NbO5/2 system and Qf value.

Google Scholar